linux-kernel - Re: [PATCH v3 00/21] x86/kaslr: Cleanup and small bugfixes

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Message-ID: <20200731092146.GB2956@gmail.com>
Date:   Fri, 31 Jul 2020 11:21:46 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Arvind Sankar <nivedita@...m.mit.edu>
Cc:     Kees Cook <keescook@...omium.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 00/21] x86/kaslr: Cleanup and small bugfixes

* Arvind Sankar <nivedita@...m.mit.edu> wrote:

> On Tue, Jul 28, 2020 at 06:57:01PM -0400, Arvind Sankar wrote:
> > v2->v3:
> > - Fix the first patch: command line size should be strlen + 1 to account
> >   for terminating NUL. Avoid calling add_identity_map if cmdline was
> >   NULL, though it should do nothing in that case anyway.
> 
> Hi Ingo, I noticed that WIP.x86/kaslr and x86/kaslr both have the v2
> version of the first patch. That has a bug in the cmd_line_size
> calculation (missing the +1).

Indeed, well spotted. I rebased the affected 4 patches in x86/kaslr 
and used the opportunity to add Kees's Reviewed-by to the first 4 
patches as well.

I've zapped tip:x86/kaslr for now and put the whole series into 
tip:WIP.x86/kaslr, will move it into tip:x86/kaslr for a v5.9 merge 
once Kees is happy with the latest version.

Kees, AFAICS your type truncation and patch split-up review 
suggestions were resolved in v3?

Thanks,

	Ingo